CN214183378U

CN214183378U - Locking mechanism for adjusting clearance of fine coal pulverizer

Info

Publication number: CN214183378U
Application number: CN202022813905.4U
Authority: CN
Inventors: 盖斌; 葛兆伦; 高东伟; 贾勇; 胡永盛
Original assignee: Datang Jixi No2 Co Generation Co ltd
Current assignee: Datang Jixi No2 Co Generation Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-09-14
Anticipated expiration: 2030-11-30

Abstract

A locking mechanism for adjusting clearance of a fine-grain coal pulverizer. The clearance adjustment mode between the tup of traditional fine grain coal breaker and the breaker is spring constant force mechanism, and during actual operation, because broken material has the viscidity material to fill in the clearance of increase rapidly and glue on the welt, make the spring reset and hinder and can not reset, when tup wearing and tearing or ejection of compact granularity increase, the adjustment clearance is hindered because of the spring and is caused the adjustment error. The utility model discloses a constitution includes: the device comprises an inner cylinder 4, wherein one side of the inner cylinder is connected with a support rod 3 of the fine particle coal crusher, a hinged cylinder 6 is installed outside the inner cylinder, a spring 5 is installed between the inner cylinder and the hinged cylinder, a skylight 7 is arranged on the wall of the hinged cylinder, a lead screw 8 is installed on the side wall of the hinged cylinder, one end of the lead screw is connected with a nut 9, and the other end of the lead screw compresses the spring. The utility model is used for adjust the clearance of granule coal breaker tup and breaker.

Description

Locking mechanism for adjusting clearance of fine coal pulverizer

Technical Field

The utility model relates to a power plant fine grain coal breaker technical field, concretely relates to fine grain coal breaker adjustment blocked mechanical system for clearance.

Background

The material of the fine-grain coal crusher enters a high-speed rotating hammer head of the crusher along the whole inlet width, and the hammer head impacts the material on a toothed plate of a crushing plate and then returns to the hammer head. The process is repeated all the time and the materials are crushed more finely by the impact among the particles after crushing. The material is crushed to a size that can leave the crushing zone through the reduced gap between the crushing plate and the rotor, thereby achieving the purpose of crushing the material to a specified particle size.

The clearance adjustment mode between the tup of traditional fine grain coal breaker and the breaker is spring constant force mechanism, and when the fine crusher got into the bold material or transships, when the breaker was greater than the setting spring force to adjusting device's thrust, the spring was toward returning back and lets, and when the bold material reduced through fine crusher or load, the spring reset guaranteed the normal operating of fine crusher. Under the striking of tup, the breaker plate moves to the right side, drives the bracing piece and retreats, and bracing piece and inside drum link together, and inside drum promotes the spring again and moves back, and when the bold material that the fine crusher got into or the overload phenomenon was relieved, the spring reset, and the machine normal operating. In actual operation, because the broken material has viscosity, the material is rapidly filled in the increased gap and firmly stuck on the lining plate, so that the spring is blocked from resetting. When the tup wearing and tearing or ejection of compact granularity increase, the adjustment clearance causes the adjustment error because of the spring is obstructed, can be because of gluing on the welt when the material drops because of reasons such as vibration when normal operating, and spring automatic re-setting causes tup and breaker plate collision, forms the incident.

Disclosure of Invention

The utility model aims at providing a granule coal breaker is adjusted clearance and is used blocked mechanical system.

The above purpose is realized by the following technical scheme:

a locking mechanism for gap adjustment of a fine coal pulverizer comprises the following components: the fine particle coal crusher comprises an inner cylinder, wherein one side of the inner cylinder is connected with a supporting rod of the fine particle coal crusher, a hinged cylinder is installed outside the inner cylinder, a spring is installed between the inner cylinder and the hinged cylinder, a skylight is formed in the wall of the hinged cylinder, a lead screw is installed on the side wall of the hinged cylinder, one end of the lead screw is connected with a nut, and the other end of the lead screw compresses the spring.

The locking mechanism for adjusting the clearance of the fine coal pulverizer is characterized in that the upper and lower positions of the cylinder wall of the hinged cylinder are provided with the skylight, and the screw rod and the nut tightly press the inner cylinder and the hinged cylinder.

Has the advantages that:

the utility model relates to a granule coal breaker adjustment is blocked mechanical system for clearance, it can observe whether the blocked mechanical system spring can normally reset in service to open the skylight on the articulated drum, lead screw and the nut that increases between inside drum and articulated drum, compress tightly inside drum and articulated drum together with lead screw and nut when the adjustment, no matter what resistance the breaker receives when guaranteeing the adjustment can both normally advance, the spring can not roll back, after the adjustment targets in place, loosen lead screw and nut, let the spring begin to work, guarantee to operate steadily safety. The mechanism can effectively reduce the occurrence probability of the impact accident of the hammer head and the crushing plate caused by the error adjustment, and can timely and safely adjust and prolong the service life of the hammer head and the crushing plate after the hammer head or the crushing plate is abraded and the discharging granularity is unqualified in operation.

Description of the drawings:

FIG. 1 is one of the schematic structural diagrams of the present invention;

fig. 2 is a second schematic structural diagram of the present invention;

FIG. 3 is a working schematic diagram of the present invention;

in the figure: 1. the device comprises a hammer head, 2, a crushing plate, 3, a supporting rod, 4, an inner cylinder, 5, a spring, 6, a hinged cylinder, 7, a skylight, 8, a lead screw, 9 and a nut.

The specific implementation mode is as follows:

example 1:

a locking mechanism for gap adjustment of a fine coal pulverizer comprises the following components: the device comprises an inner cylinder 4, wherein one side of the inner cylinder is connected with a support rod 3 of the fine particle coal crusher, a hinged cylinder 6 is installed outside the inner cylinder, a spring 5 is installed between the inner cylinder and the hinged cylinder, a skylight 7 is arranged on the wall of the hinged cylinder, a lead screw 8 is installed on the side wall of the hinged cylinder, one end of the lead screw is connected with a nut 9, and the other end of the lead screw compresses the spring.

Example 2:

the locking mechanism for gap adjustment of the fine coal pulverizer as claimed in embodiment 1, wherein the skylight is arranged at the upper and lower positions of the wall of the hinged cylinder, and the screw rod and the nut tightly press the inner cylinder and the hinged cylinder;

the working principle is as follows: under the strike of tup 1, breaker plate 2 moves to the right side, drives the bracing piece and retreats, and bracing piece and inside drum link together, and inside drum promotes the spring again and moves back, and when the bold material that the fine crusher got into or the overload phenomenon was relieved, the spring reset, machine normal operating. When the inner cylinder pushes the spring to move back, whether the spring can normally reset or not can be observed normally because the spring is tightly wrapped by the outer hinged cylinder, and a skylight is arranged on the hinged cylinder to observe whether the spring can normally reset or not in operation;

when the tup wearing and tearing or ejection of compact granularity increase, the adjustment clearance this moment, because of the material that glues on the welt is greater than the pretightning force of spring to the resistance of crushing shell, need increase adjustment force, the brute force will be glued the material on the welt and is clear away, makes the crushing shell adjust in a flexible way. Inside drum promotes the spring motion, increases lead screw and nut between inside drum and articulated drum, compresses tightly inside drum and articulated drum together with lead screw and nut when the adjustment, no matter what resistance receives when guaranteeing the adjustment, can both normally advance, and the spring can not roll back, after the adjustment targets in place, loosens lead screw and nut, lets the spring begin to work, guarantees to operate steadily safety.

Claims

1. A locking mechanism for gap adjustment of a fine coal pulverizer comprises the following components: an inner cylinder, characterized by: one side of the inner cylinder is connected with a support rod of the fine particle coal crusher, a hinged cylinder is installed outside the inner cylinder, a spring is installed between the inner cylinder and the hinged cylinder, a skylight is arranged on the wall of the hinged cylinder, a lead screw is installed on the side wall of the hinged cylinder, one end of the lead screw is connected with a nut, and the other end of the lead screw compresses the spring.

2. The locking mechanism for gap adjustment in a fine coal pulverizer as defined in claim 1, wherein: the upper and lower positions of the wall of the hinged cylinder are provided with the skylight, and the screw rod and the nut tightly press the inner cylinder and the hinged cylinder.